A Study to Compare Daratumumab, Bortezomib, and Dexamethasone (DVd) vs Bortezomib and Dexamethasone (Vd) in Chinese Participants With Relapsed or Refractory Multiple Myeloma

Prior treatment

• Received daratumumab or other anti-CD38 therapies
• Refractory to Velcade, or another proteasome inhibitor (PI), like ixazomib and carfilzomib (ie, participant had progression of disease while receiving Velcade therapy or within 60 days of ending Velcade therapy, or another PI, like ixazomib and carfilzomib, etc)
• Planning to undergo a stem cell transplant prior to progression of disease on this study, that is ie, these participants should not be enrolled in order to reduce disease burden prior to transplant

Other illness

• History of malignancy (other than MM) within 3 years before the date of randomization

Other

• Intolerant to Velcade (that is \[ie\], discontinued due to any adverse event while on Velcade treatment)

• Documented multiple myeloma (MM) as defined by the criteria: monoclonal plasma cells in the bone marrow greater than or equal to (\>=) 10 percent (%) at some point in the participant's disease course or presence of a biopsy-proven plasmacytoma
• Received at least 1 prior line of therapy for MM
• Documented evidence of progressive disease (PD) based on investigator's determination of response as defined by the International Myeloma Working Group (IMWG) criteria on or after their last regimen
• Achieved a response (partial response \[PR\] or better based on investigator's determination of response by the IMWG criteria) to at least 1 prior regimen
• Eastern Cooperative Oncology Group (ECOG) Performance Status score of 0, 1, or 2